US3786500A - Fiber optic translator - Google Patents

Fiber optic translator Download PDF

Info

Publication number
US3786500A
US3786500A US00168625A US3786500DA US3786500A US 3786500 A US3786500 A US 3786500A US 00168625 A US00168625 A US 00168625A US 3786500D A US3786500D A US 3786500DA US 3786500 A US3786500 A US 3786500A
Authority
US
United States
Prior art keywords
openings
light
block
light receiver
receiver block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00168625A
Inventor
C Fiorletta
R Fiorletta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3786500A publication Critical patent/US3786500A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C5/00—Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages

Definitions

  • Wannisky 5 7 ABSTRACT A device of optical type which may be used in an educational game or toy or which alternately can be used in a security check system, the device consisting of a common 5 by 7 dot matrix display composed of 35 single strands which at their opposite ends are connected to a light receiver block provided with 64 openings, the 35 single strands being so connected to the 64 openings so to form a pattern for an end coder, the light receiver block being aligned with a light concentration block having 64 openings aligned with the openings of the light receiver block, the light concentration block forming one end of a box containing an incandescent lamp and reflector, and a square decoder card is placeable between the light concentration block and the light receiver block, the decoder card having openings therethrough which are aligned with the openings of the light concentration block.
  • a principal object of the present invention is to provide a fiber optic translator for decoding purposes and which can be used as a principal element in an educational toy or game for diversion and for testing a persons skill.
  • Another object of the present invention is to provide a fiber optic translator which can be used as a security check system.
  • Still another object of the present invention is to provide a fiber optic translator that is adaptable to receive variously arranged decoder cards for being decoded optically.
  • Still another object of the present invention is to provide a fiber optic translator wherein alternately the decoder card may be replaced with a moveable band or disc and which may be used as a location or position indicator.
  • Still another objectof the present invention is to provide a fiber optic translator which is very reliable in view that only a lamp of the device is subject to failure, the lamp being readily replaceable.
  • FIG. 1 is a perspective view of the present invention and which is shown to incorporate a light box shown partly broken away to illustrate the interior and a decoder card used in conjunction therewith,
  • FIG. 2 are diagrams showing various alphabetical and numerical character patterns produced by the apparatus upon a dot matrix display
  • FIG. 3 is a face view of the common dot matrix display device.
  • FIG. 4 is a face view of a light receiver block to which single strands from the dot matrix display are connected in various patterns to form an end coder, and
  • FIG. 5 is a side view of a decoder card that is punched out so to form the alphabetical letter character A.
  • FIG. 1 a common 5/7 dot matrix display 11 so that the 35 dots 12 thereof are connected to one end of 35 sm gle strands 13 which are made of 0.020 inch Dupont CROFON plastic light guides which at their opposite ends are placed in a light receiver block 14.
  • the light receiver block contains 64 openings 15 therethrough, the openings 15 being arranged in eight rows longitudinally and transversely so to form a grid wherein only certain of the openings 15 are connected to the ends of the 35 single strands 13 so that such a pattern of these particular 35 connections serve to form an end coder.
  • Each strand may be removed and reinserted in another opening 15 so to form a different translator code.
  • a light concentrator block 16 which is of a same size as the light receiver block, the light concentrator block 16 containing 64 openings 17 therethrough which are likewise arranged in eight longitudinal and lateral rows so that the openings 17 of the light concentrator block 16 are aligned with the openings 15 of the light receiver block.
  • the light concentrator block 16 forms one end of a case or box 18 within the interior 19 of which there is an incandescent lamp 20 surrounded by a reflector 21.
  • the lamp 20 is connected by an electric extension cord 22 which extends outwardly of the box 18, the opposite end of the extension cord having a male plug 23 for being insertible into a house electric outlet socket.
  • a space 24 formed between the light receiver block 14 and the light concentrator block 16 is adaptable for receiving a decoder card 25.
  • the decoder card is square and of a same size as the light receiver block and the light concentrator block, the decoder card having openings 26 punched therethrough, the openings 26 being so arranged that they align with certain of the openings 17 and the openings 15.
  • the decoder card 25 may be made of any durable opaque material such as a dark plastic.
  • the decoder card openings 26 are arranged upon the card in a manner so to form an alpha-numeric character which annot be readily distinguishable when observed to the naked eye of a person because the arrangement of the openingsis scrambled.
  • the readjustment of the mounting of the strands 13 on the light receiver block brings visual images of the scattered openings 26 into their proper position so that the character or numerical digit may be read.
  • the light receiver block 14 shows 35 of the 64 openings 15 being indicated by a numeral that corresponds to one of the numerals on the 35 dots of the matrix display 11. Accordingly it is appreciated that the strands 13 are each connected at their one ends to the dots 12 and that their opposite ends to the openings 15 so that for example a strand 13 at one end is connected to the dot number one and at its opposite end is connected to the opening number one.
  • the decoder card 25 shown in FIG. 5 shows the openings 26 thoroughly scrambled. These openings accordingly visually do not convey their true representation, however these openings are aligned with selective ones of the 64 openings 15 so that those openings 15 which in the example illustrated in FIG. 4 are identified by a numeral or aligned therewith. It is now evident that the fiber optic translator will now flash a visual image on the matrix display 11 with the true appearance of the alphabetical letter A such as is illustrated in the upper left diagram shown in FIG. 2.
  • the decoder card due to its square configuration, may be inserted in any number of different ways such as backwards, rotated or and still form different characters.
  • the fiber optic translator could be used as the principal element in a simple security check-system.
  • FIG. 2 show the visual display on the matrix display device 11 representing different alphabetical letters and numerical numerals.
  • a fiber optic translator which decodes a card containing a pattern of openings which visually to the player identify nothing but wherein the pattern of openings are unscrambled by the present device.
  • a fiber optic translator used to convert, by nonelectronic means, an optically unrecognizable pattern of openings in a card into optically recognizable objects, the combination of a display matrix connected by plastic light guide strands to a light receiver block spaced from a light concentrator block that is at one end of a box containing an incandescent lamp and revflector, a decoder card receivable between said light light receiver block so to form an end coder, said connection being re-arrangeable in pattern, said light concentration block comprising a panel having openings therethrough in a same arrangement as said openings in said light receiver block, said openings of said light concentrator block being arranged with the openings of said light receiver block so that light from said incandescent lamp can pass through said openings of said blocks, said decoder card being made opaque and being of a size equivalent to a size of said light receiver block or light concentrator block, said decoder card being provided with several spaced apart openings therethrough which represent a particular alphabetical character or numerical

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electrically Operated Instructional Devices (AREA)

Abstract

A device of optical type which may be used in an educational game or toy or which alternately can be used in a security check system, the device consisting of a common 5 by 7 dot matrix display composed of 35 single strands which at their opposite ends are connected to a light receiver block provided with 64 openings, the 35 single strands being so connected to the 64 openings so to form a pattern for an end coder, the light receiver block being aligned with a light concentration block having 64 openings aligned with the openings of the light receiver block, the light concentration block forming one end of a box containing an incandescent lamp and reflector, and a square decoder card is placeable between the light concentration block and the light receiver block, the decoder card having openings therethrough which are aligned with the openings of the light concentration block.

Description

United States Patent 1191 Fiorletta et al.
1451 Jan. 15, 1974 FIBER OPTIC TRANSLATOR [76] Inventors: Robert J. Fiorletta; Carol J.
Fiorletta, both of 12028 Wheaton, Sterling Heights, Mich. 48078 22 Filed: Augs, 1971 [21] Appl. No.: 168,625
[52] US. Cl. 340/380, 350/96 R, 340/365 P,
[51] Int. Cl. G08b 5/00 [58] Field of Search 340/380, 149 A, 365 P; 350/96 B, 96 R; 250/227 [56] References Cited UNITED STATES PATENTS 3,612,888 10/1971 Boucher 350/96 B ux 3,622,793 11/1971 Dalton 350/96 B X 3,517,386 6/1970 Jones 350/96 B UX 3,644,922 2/1972 James... 350/96 B X 3,169,305 2/1965 Gray 340/380 X 3,412,255 11/1968 Krieger 350/96 B UX Brugger 350/96 B UX Primary ExaminerThomas B. Habecker Assistant Examiner-William M. Wannisky 5 7 ABSTRACT A device of optical type which may be used in an educational game or toy or which alternately can be used in a security check system, the device consisting of a common 5 by 7 dot matrix display composed of 35 single strands which at their opposite ends are connected to a light receiver block provided with 64 openings, the 35 single strands being so connected to the 64 openings so to form a pattern for an end coder, the light receiver block being aligned with a light concentration block having 64 openings aligned with the openings of the light receiver block, the light concentration block forming one end of a box containing an incandescent lamp and reflector, anda square decoder card is placeable between the light concentration block and the light receiver block, the decoder card having openings therethrough which are aligned with the openings of the light concentration block.
1 Claim, 5 Drawing Figures PATENIEB l 3,786,500
' sum 1 OF 3 Y INVENTORS. F-T ROBE/Q7 .1. F/OALETT/l 5 CAROL 1. F/OR'LETTA PAIENIEDJAN 1 5 I974 sum 2 or 3 00000 0 ,/Loooo 000 0000 00000 00000 0 0 0 0 0v 0 o 0 o o 0 0 0 0 O 0 0 O 0 0 00 00 00 0 0 0 0 0000 0000 0 0 0 0 0 0 o 0 0 0 0 0 o 0 0 o 0 0 0 O 0 0000 00 0 0000 00000 0 0000 0 0 000 0 0 0 0 0 0 0 o 0 o 0 0 o 0 o 0 0 0 O 0 0 00 00000 0 o 0 0 0 o o o 0 o o 0 O 0 0 0 o 0 o 0 o 0 0 0 0 0 0 v0 000 000 000 0000 o o 0 0 0 0 o 0 0 0 o 0 00 00 0o 0 0 0 0 o 0 o 0 0 0 o 0 0 0 o 0 0 9000 0 o 0 000 O 0 0 0 o 0 O 0 0 0 o O O 0 0 o 0 0 0 0 O 00 0 0 0 O 0 0 O O 0 0 O 00 O O 0 O O O O o 00 O O O o o 0 0 0 0 0 0 O 0 0 0 0 0 0 o 0 0 O 0 O O O 0 O O 0 0 0 O 0 0 o 0 o 0 00 0 o 0 0 0 0 0 0 0 O O o 0' 0 0 0 0 0 o 000 0 o 00 0 o 0 0 o 9 0 00000 0 000 00000 0 0 0 o 0 0 0 O 0 0 O 0 o o 0 0 0 0 o 0 0 O 0 0 000 0 0 000 0 0 0 o 0 0 0 0 O 0 O o o 0 00000 00000 00000 900 0 00000 00 0 0000 000 000 00 0 0 0 0 0 0 0 0 o O 0 O 0 O 0 O O o 0 O o o 0000 0 000 0000 o 0 0 0 0 o o 0 o o o 0 o 0 0 0 0 0 o o 0 000 000 0 000 00 0 0 Y J H INVENTORS.
ROBE/Q7 1/. F/OALETTA CAROL d. F/ORLE 7 TA Fig.
mgg
PAIENTED JAN I 5 I974 SHEET 3 OF 3 (6) qng I N VENTORS.
ROBERT J'F/ORLETTA CA RoL J. F/0RL5T7A FIBER OPTIC TRANSLATOR This invention relates generally to decoding devices.
A principal object of the present invention is to provide a fiber optic translator for decoding purposes and which can be used as a principal element in an educational toy or game for diversion and for testing a persons skill.
Another object of the present invention is to provide a fiber optic translator which can be used as a security check system.
Still another object of the present invention is to provide a fiber optic translator that is adaptable to receive variously arranged decoder cards for being decoded optically.
Still another object of the present invention is to provide a fiber optic translator wherein alternately the decoder card may be replaced with a moveable band or disc and which may be used as a location or position indicator.
Still another objectof the present invention is to provide a fiber optic translator which is very reliable in view that only a lamp of the device is subject to failure, the lamp being readily replaceable.
Other objects of the present invention are to provide a fiber optic translator which is simple in design, inexpensive to manufacture, rugged in construction, easy to use and efficient in operation.
These and other objects will be readily evident upon a study of the following specification and the accompanying drawings wherein:
FIG. 1 is a perspective view of the present invention and which is shown to incorporate a light box shown partly broken away to illustrate the interior and a decoder card used in conjunction therewith,
FIG. 2 are diagrams showing various alphabetical and numerical character patterns produced by the apparatus upon a dot matrix display,
FIG. 3 is a face view of the common dot matrix display device.
FIG. 4 is a face view of a light receiver block to which single strands from the dot matrix display are connected in various patterns to form an end coder, and
FIG. 5 is a side view of a decoder card that is punched out so to form the alphabetical letter character A.
Referring now to the drawings in detail, the reference numeral represents a fiber optic translator according to the present invention wherein there is shown in FIG. 1 a common 5/7 dot matrix display 11 so that the 35 dots 12 thereof are connected to one end of 35 sm gle strands 13 which are made of 0.020 inch Dupont CROFON plastic light guides which at their opposite ends are placed in a light receiver block 14. The light receiver block contains 64 openings 15 therethrough, the openings 15 being arranged in eight rows longitudinally and transversely so to form a grid wherein only certain of the openings 15 are connected to the ends of the 35 single strands 13 so that such a pattern of these particular 35 connections serve to form an end coder.
Such pattern is, of course, variable. Each strand may be removed and reinserted in another opening 15 so to form a different translator code.
In close proximity to the light receiver block 14 there is a light concentrator block 16 which is of a same size as the light receiver block, the light concentrator block 16 containing 64 openings 17 therethrough which are likewise arranged in eight longitudinal and lateral rows so that the openings 17 of the light concentrator block 16 are aligned with the openings 15 of the light receiver block.
The light concentrator block 16 forms one end of a case or box 18 within the interior 19 of which there is an incandescent lamp 20 surrounded by a reflector 21. The lamp 20 is connected by an electric extension cord 22 which extends outwardly of the box 18, the opposite end of the extension cord having a male plug 23 for being insertible into a house electric outlet socket.
A space 24 formed between the light receiver block 14 and the light concentrator block 16 is adaptable for receiving a decoder card 25. The decoder card is square and of a same size as the light receiver block and the light concentrator block, the decoder card having openings 26 punched therethrough, the openings 26 being so arranged that they align with certain of the openings 17 and the openings 15.
The decoder card 25 may be made of any durable opaque material such as a dark plastic. The decoder card openings 26 are arranged upon the card in a manner so to form an alpha-numeric character which annot be readily distinguishable when observed to the naked eye of a person because the arrangement of the openingsis scrambled.
In the present invention, the readjustment of the mounting of the strands 13 on the light receiver block brings visual images of the scattered openings 26 into their proper position so that the character or numerical digit may be read.
This is clearly illustrated in the example illustrated in FIGS. 3 to 5 wherein in FIG. 3 each dot 12 of the matrix display 11 are numbered so to clarify the explanation.
In FIG. 4 the light receiver block 14 shows 35 of the 64 openings 15 being indicated by a numeral that corresponds to one of the numerals on the 35 dots of the matrix display 11. Accordingly it is appreciated that the strands 13 are each connected at their one ends to the dots 12 and that their opposite ends to the openings 15 so that for example a strand 13 at one end is connected to the dot number one and at its opposite end is connected to the opening number one.
The decoder card 25 shown in FIG. 5 shows the openings 26 thoroughly scrambled. These openings accordingly visually do not convey their true representation, however these openings are aligned with selective ones of the 64 openings 15 so that those openings 15 which in the example illustrated in FIG. 4 are identified by a numeral or aligned therewith. It is now evident that the fiber optic translator will now flash a visual image on the matrix display 11 with the true appearance of the alphabetical letter A such as is illustrated in the upper left diagram shown in FIG. 2.
It is to be noted that the decoder card, due to its square configuration, may be inserted in any number of different ways such as backwards, rotated or and still form different characters. When used in this manner, the fiber optic translator could be used as the principal element in a simple security check-system.
The other diagrams in FIG. 2 show the visual display on the matrix display device 11 representing different alphabetical letters and numerical numerals.
Thus there is provided a fiber optic translator which decodes a card containing a pattern of openings which visually to the player identify nothing but wherein the pattern of openings are unscrambled by the present device.
What I now claim is:
1. ln a fiber optic translator used to convert, by nonelectronic means, an optically unrecognizable pattern of openings in a card into optically recognizable objects, the combination of a display matrix connected by plastic light guide strands to a light receiver block spaced from a light concentrator block that is at one end of a box containing an incandescent lamp and revflector, a decoder card receivable between said light light receiver block so to form an end coder, said connection being re-arrangeable in pattern, said light concentration block comprising a panel having openings therethrough in a same arrangement as said openings in said light receiver block, said openings of said light concentrator block being arranged with the openings of said light receiver block so that light from said incandescent lamp can pass through said openings of said blocks, said decoder card being made opaque and being of a size equivalent to a size of said light receiver block or light concentrator block, said decoder card being provided with several spaced apart openings therethrough which represent a particular alphabetical character or numerical digit, the openings in said decoder card being scrambled in position so that visually the said character or digit cannot be identified, said openings of said decoder card however being lined with certain of said openings and said light concentrator block and said light receiver block.

Claims (1)

1. In a fiber optic translator used to convert, by nonelectronic means, an optically unrecognizable pattern of openings in a card into optically recognizable objects, the combination of a display matrix connected by plastic light guide strands to a light receiver block spaced from a light concentrator block that is at one end of a box containing an incandescent lamp and reflector, a decoder card receivable between said light receiver block and said light concentrator block, said display matrix having light openings arranged thereupon in horizontal and vertical rows to form a grid for visually reading an alphabetical character or a numerical digit, one end of each of said strands being connected to one of said light openings, and the opposite end of each said strand being connected to said light receiver block that comprises a panel with spaced apart openings therethrough, the end of said strands being selectively connected to certain of said openings in light receiver block so to form an end coder, said connection being re-arrangeable in pattern, said light concentration block comprising a panel having openings therethrough in a same arrangement as said openings in said light receiver block, said openings of said light concentrator block being arranged with the openings of said light receiver block so that light from said incandescent lamp can pass through said openings of said blocks, said decoder card being made opaque and being of a size equivalent to a size of said light receiver block or light concentrator block, said decoder card being provided with several spaced apart openings therethrough which represent a particular alphabetical character or numerical digit, the openings in said decoder card being scrambled in position so that visually the said character or digit cannot be identified, said openings of said decoder card however being lined with certain of said openings and said light concentrator block and said light receiver block.
US00168625A 1971-08-03 1971-08-03 Fiber optic translator Expired - Lifetime US3786500A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16862571A 1971-08-03 1971-08-03

Publications (1)

Publication Number Publication Date
US3786500A true US3786500A (en) 1974-01-15

Family

ID=22612268

Family Applications (1)

Application Number Title Priority Date Filing Date
US00168625A Expired - Lifetime US3786500A (en) 1971-08-03 1971-08-03 Fiber optic translator

Country Status (1)

Country Link
US (1) US3786500A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280122A (en) * 1980-06-30 1981-07-21 Dolan-Jenner Industries, Inc. Optical fibers
US4296562A (en) * 1978-03-07 1981-10-27 Sanborn George A Traveling light display
US4306716A (en) * 1980-01-21 1981-12-22 Mattel, Inc. Electronic game having light guide array display
US4525711A (en) * 1982-09-03 1985-06-25 Gery Alan R Three-dimensional fiber optic display
US4747648A (en) * 1985-01-24 1988-05-31 Drd Ltd. Optical fiber display and optical train for same
US4917448A (en) * 1988-10-27 1990-04-17 Oppenheimer M David Lighted display device
US5066947A (en) * 1988-02-03 1991-11-19 Francois Du Castel Very large size display screen
US5202549A (en) * 1991-09-30 1993-04-13 International Business Machines Corporation Transaction machine having lighted user prompts
US5391105A (en) * 1994-02-01 1995-02-21 Innoland, Inc. Picture toy having movable light coducting pegs to form patterns
US20050076804A1 (en) * 1999-07-08 2005-04-14 Aai Corporation Passenger rail car sliding door with high platform threshold
US20110158601A1 (en) * 2009-12-31 2011-06-30 Juniper Networks, Inc. Using a waveguide to display information on electronic devices

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169305A (en) * 1963-09-25 1965-02-16 Edward W Gray Cable harness assembly apparatus
US3412255A (en) * 1964-12-22 1968-11-19 Sperry Rand Corp Character recognition system using selectively positioned light conducting rods and including conversion to exess three binary code
US3517386A (en) * 1966-09-07 1970-06-23 Itt Visual pattern recognition system
US3571796A (en) * 1968-05-28 1971-03-23 Bendix Corp Rotation translation independent feature extraction means
US3612888A (en) * 1968-07-10 1971-10-12 Sanders Associates Inc Information media reading apparatus
US3622793A (en) * 1969-03-28 1971-11-23 Ibm Fiber optic light transmitting assembly compensating for shadows
US3644922A (en) * 1969-07-14 1972-02-22 Image Products Corp High-resolution fiber optic display and microfilm printer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169305A (en) * 1963-09-25 1965-02-16 Edward W Gray Cable harness assembly apparatus
US3412255A (en) * 1964-12-22 1968-11-19 Sperry Rand Corp Character recognition system using selectively positioned light conducting rods and including conversion to exess three binary code
US3517386A (en) * 1966-09-07 1970-06-23 Itt Visual pattern recognition system
US3571796A (en) * 1968-05-28 1971-03-23 Bendix Corp Rotation translation independent feature extraction means
US3612888A (en) * 1968-07-10 1971-10-12 Sanders Associates Inc Information media reading apparatus
US3622793A (en) * 1969-03-28 1971-11-23 Ibm Fiber optic light transmitting assembly compensating for shadows
US3644922A (en) * 1969-07-14 1972-02-22 Image Products Corp High-resolution fiber optic display and microfilm printer

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296562A (en) * 1978-03-07 1981-10-27 Sanborn George A Traveling light display
US4306716A (en) * 1980-01-21 1981-12-22 Mattel, Inc. Electronic game having light guide array display
US4280122A (en) * 1980-06-30 1981-07-21 Dolan-Jenner Industries, Inc. Optical fibers
US4525711A (en) * 1982-09-03 1985-06-25 Gery Alan R Three-dimensional fiber optic display
US4747648A (en) * 1985-01-24 1988-05-31 Drd Ltd. Optical fiber display and optical train for same
US5066947A (en) * 1988-02-03 1991-11-19 Francois Du Castel Very large size display screen
US4917448A (en) * 1988-10-27 1990-04-17 Oppenheimer M David Lighted display device
US5202549A (en) * 1991-09-30 1993-04-13 International Business Machines Corporation Transaction machine having lighted user prompts
US5391105A (en) * 1994-02-01 1995-02-21 Innoland, Inc. Picture toy having movable light coducting pegs to form patterns
US20050076804A1 (en) * 1999-07-08 2005-04-14 Aai Corporation Passenger rail car sliding door with high platform threshold
US20110158601A1 (en) * 2009-12-31 2011-06-30 Juniper Networks, Inc. Using a waveguide to display information on electronic devices
US8331749B2 (en) * 2009-12-31 2012-12-11 Juniper Networks, Inc. Using a waveguide to display information on electronic devices
US8672487B2 (en) 2009-12-31 2014-03-18 Juniper Networks, Inc. Using a waveguide to display information on electronic devices
US9411447B2 (en) 2009-12-31 2016-08-09 Juniper Networks, Inc. Using a waveguide to display information on electronic devices
US9939573B2 (en) 2009-12-31 2018-04-10 Juniper Networks, Inc. Using a waveguide to display information on electronic devices

Similar Documents

Publication Publication Date Title
US3184872A (en) Moving pattern simulator
US5790055A (en) Method for encoding chinese and japanese ideographic characters for computer entry, retrieval and processing
MX149786A (en) IMPROVEMENTS IN AN ELECTRONIC DEVICE FOR FUN
GB1390423A (en) Display device
DE69602492T2 (en) display
US3959633A (en) Security guard recording system
US5026288A (en) Illuminated educational blocks
US3314165A (en) Educational device
FR2678094B1 (en) DATA COUNTING MEMORY CARD AND READING APPARATUS.
US3220000A (en) Manually controlled coding device
US3399474A (en) Digital display device using reflected light
US3399475A (en) Digital indicator
US3646592A (en) Cube pattern game
KR890702159A (en) Sheet for information code and recognition method
US3579864A (en) Teaching device
US3618078A (en) Annunciator
KR850004827A (en) Optical reader
MY109652A (en) Learning toy
US3559173A (en) Apparatus for authenticating holders of card identification symbols
US3252158A (en) Character display device
EP1569003A1 (en) Measuring device
US3382495A (en) Display device having selectively illuminated indicia plates
SU395887A1 (en) DEVICE FOR CONTROL OF KNOWLEDGE OF STUDENTS
GB1430940A (en) Teaching apparatus
RU6255U1 (en) TRAINING DEVICE